/* ==========================================================================
   Cabinet Brochen — Feuille de style principale
   Thème : noir & blanc, nuances de gris, sobre et moderne
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --black: #0d0d0d;
  --ink: #171717;
  --gray-900: #1f1f1f;
  --gray-800: #2c2c2c;
  --gray-700: #444444;
  --gray-600: #5f5f5f;
  --gray-500: #808080;
  --gray-400: #a3a3a3;
  --gray-300: #cfcfcf;
  --gray-200: #e5e5e5;
  --gray-100: #f2f2f2;
  --gray-50:  #f8f8f8;
  --white: #ffffff;

  --bg: var(--white);
  --text: var(--ink);
  --muted: var(--gray-600);
  --line: var(--gray-200);

  --font-serif: "Cormorant Garamond", "Times New Roman", Georgia, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --maxw: 1200px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --header-h: 84px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.05);
  --shadow-md: 0 10px 30px rgba(0,0,0,.10);
  --shadow-lg: 0 24px 60px rgba(0,0,0,.16);

  --transition: .35s cubic-bezier(.2,.7,.2,1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; }

/* ---------- Typographie ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 .5em;
  letter-spacing: .01em;
}
h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
h3 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); }
p { margin: 0 0 1.1em; }
.lead { font-size: 1.2rem; color: var(--gray-700); }

/* Titre de section décoré */
.eyebrow {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: .28em;
  font-size: .72rem;
  font-weight: 600;
  color: var(--gray-500);
  margin: 0 0 1rem;
  display: inline-block;
}
.section-title { position: relative; margin-bottom: 1.5rem; }
.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 2px;
  background: var(--black);
  margin-top: 1.1rem;
}
.section-title.center { text-align: center; }
.section-title.center::after { margin-left: auto; margin-right: auto; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }
.container-narrow { max-width: 820px; }
section { padding: clamp(3.5rem, 8vw, 7rem) 0; }
.bg-light { background: var(--gray-50); }
.bg-dark { background: var(--black); color: var(--gray-200); }
.bg-dark h1, .bg-dark h2, .bg-dark h3 { color: var(--white); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .95rem 2rem;
  font-family: var(--font-sans);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  border: 1.5px solid var(--black);
  background: var(--black);
  color: var(--white);
  transition: var(--transition);
}
.btn:hover { background: transparent; color: var(--black); }
.btn--ghost { background: transparent; color: var(--black); }
.btn--ghost:hover { background: var(--black); color: var(--white); }
.btn--light { border-color: var(--white); background: var(--white); color: var(--black); }
.btn--light:hover { background: transparent; color: var(--white); }
.btn--outline-light { border-color: rgba(255,255,255,.6); background: transparent; color: var(--white); }
.btn--outline-light:hover { background: var(--white); color: var(--black); border-color: var(--white); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--black);
  position: relative;
}
.link-arrow::after { content: "→"; transition: transform var(--transition); }
.link-arrow:hover::after { transform: translateX(6px); }

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition), height var(--transition);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.brand { display: flex; align-items: center; gap: .75rem; }
.brand img { height: 46px; width: auto; transition: var(--transition); }

/* État transparent (au-dessus du hero) */
.site-header--transparent { background: transparent; }
.site-header--transparent .nav-link,
.site-header--transparent .nav-toggle span { color: var(--white); }
.site-header--transparent .nav-toggle span { background: var(--white); }
.site-header--transparent .brand img { filter: brightness(0) invert(1); }

/* État solide (au scroll ou pages internes) */
.site-header--solid {
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(180%) blur(8px);
  box-shadow: 0 1px 0 var(--line);
  height: 72px;
}
.site-header--solid .brand img { height: 40px; }

.main-nav ul { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.1rem); list-style: none; }
.nav-link {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gray-800);
  padding: .4rem 0;
  position: relative;
  transition: color var(--transition);
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: currentColor;
  transition: width var(--transition);
}
.nav-link:hover::after,
.nav-link.is-active::after { width: 100%; }
.nav-link.is-active { color: var(--black); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  width: 26px; height: 2px;
  background: var(--black);
  transition: var(--transition);
}
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: var(--white);
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  background: url("../img/accueil-gare-fond.webp") center 30% / cover no-repeat;
  filter: grayscale(100%) contrast(1.02);
  transform: scale(1.05);
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.4) 40%, rgba(0,0,0,.72) 100%);
}
.hero__inner { position: relative; z-index: 2; max-width: 780px; padding-top: var(--header-h); }
.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: .34em;
  font-size: .8rem;
  font-weight: 600;
  color: var(--gray-300);
  margin-bottom: 1.4rem;
}
.hero h1 { color: var(--white); letter-spacing: .06em; margin-bottom: .3em; }
.hero__sub { font-family: var(--font-serif); font-size: clamp(1.3rem, 2.6vw, 1.9rem); color: var(--gray-200); font-style: italic; margin-bottom: 2.2rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero__scroll {
  position: absolute;
  left: 50%; bottom: 2rem;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--gray-300);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
}
.hero__scroll::after {
  content: "";
  width: 1px; height: 40px;
  background: var(--gray-400);
  animation: scrollLine 2s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scrollLine { 0%,100% { transform: scaleY(.4); opacity:.4 } 50% { transform: scaleY(1); opacity:1 } }

/* Bandeau de page (pages internes) */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 4.5rem) 0 3.5rem;
  background: var(--black);
  color: var(--white);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: url("../img/accueil-gare-fond.webp") center 35% / cover no-repeat;
  filter: grayscale(100%);
  opacity: .18;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: var(--white); margin-bottom: .3rem; }
.breadcrumb { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--gray-400); }
.breadcrumb a:hover { color: var(--white); }

/* ==========================================================================
   Composants de contenu
   ========================================================================== */
/* Intro deux colonnes */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.split--reverse .split__media { order: 2; }
.split__media img {
  width: 100%;
  filter: grayscale(100%);
  transition: filter .6s ease;
}
.split__media img:hover { filter: grayscale(0%); }
.framed { position: relative; }
.framed::before {
  content: "";
  position: absolute;
  inset: 16px -16px -16px 16px;
  border: 1px solid var(--gray-300);
  z-index: -1;
}

/* Cartes domaines */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.card {
  position: relative;
  padding: 2.5rem 2rem;
  background: var(--white);
  border: 1px solid var(--line);
  transition: var(--transition);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; left: 0; top: 0;
  width: 100%; height: 3px;
  background: var(--black);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.card:hover::before { transform: scaleX(1); }
.card__num {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  color: var(--gray-300);
  line-height: 1;
  margin-bottom: 1rem;
}
.card h3 { margin-bottom: .6rem; }
.card p { color: var(--muted); font-size: .98rem; }

/* Équipe */
.team { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.member { text-align: center; }
.member__photo {
  position: relative;
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.member__photo img { width: 100%; filter: grayscale(100%); transition: transform .6s ease, filter .6s ease; }
.member:hover .member__photo img { transform: scale(1.04); }
.member__name { font-family: var(--font-serif); font-size: 1.5rem; margin-bottom: .1rem; }
.member__role { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--gray-500); margin-bottom: 1rem; }
.member__bio { font-size: .96rem; color: var(--muted); text-align: left; }

/* Bloc profil détaillé (présentation) */
.profile { display: grid; grid-template-columns: 340px 1fr; gap: clamp(2rem, 4vw, 3.5rem); align-items: start; margin-bottom: 4rem; }
.profile:last-child { margin-bottom: 0; }
.profile--reverse { grid-template-columns: 1fr 340px; }
.profile--reverse .profile__media { order: 2; }
.profile__media img { width: 100%; filter: grayscale(100%); }
.profile__role { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--gray-500); margin: -.3rem 0 1.2rem; }

/* Accordéon domaines */
.accordion { border-top: 1px solid var(--line); }
.accordion__item { border-bottom: 1px solid var(--line); }
.accordion__head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.6rem 0;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  color: var(--black);
}
.accordion__icon { position: relative; width: 20px; height: 20px; flex: none; }
.accordion__icon::before, .accordion__icon::after {
  content: ""; position: absolute; background: var(--black);
  left: 50%; top: 50%; transform: translate(-50%,-50%);
}
.accordion__icon::before { width: 20px; height: 2px; }
.accordion__icon::after { width: 2px; height: 20px; transition: transform var(--transition); }
.accordion__item.is-open .accordion__icon::after { transform: translate(-50%,-50%) scaleY(0); }
.accordion__body { overflow: hidden; max-height: 0; transition: max-height .5s ease; }
.accordion__body-inner { padding: 0 0 1.8rem; color: var(--muted); max-width: 70ch; }

/* Liste features */
.feature-list { list-style: none; }
.feature-list li {
  position: relative;
  padding-left: 1.8rem;
  margin-bottom: .7rem;
  color: var(--muted);
}
.feature-list li::before {
  content: "";
  position: absolute; left: 0; top: .65em;
  width: 8px; height: 8px;
  background: var(--black);
  transform: rotate(45deg);
}

/* Honoraires */
.fees-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.75rem; margin-top: 2.5rem; }
.fee-card { padding: 2.5rem; border: 1px solid var(--line); background: var(--white); }
.fee-card h3 { margin-bottom: 1rem; }
.fee-highlight {
  margin-top: 2.5rem;
  padding: 2.5rem;
  background: var(--black);
  color: var(--gray-200);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.fee-highlight .price { font-family: var(--font-serif); font-size: 3rem; color: var(--white); line-height: 1; }

/* Actualités */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.75rem; }
.news-item {
  padding: 2.2rem;
  border: 1px solid var(--line);
  background: var(--white);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-item:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.news-item__date { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--gray-500); margin-bottom: .8rem; }
.news-item h3 { font-size: 1.35rem; margin-bottom: .8rem; }
.news-item p { color: var(--muted); font-size: .98rem; }
.news-item__tag {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 1.2rem;
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gray-600);
}

/* ==========================================================================
   Formulaire de contact
   ========================================================================== */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.contact-info h3 { margin-bottom: 1.4rem; }
.info-row { display: flex; gap: 1rem; margin-bottom: 1.6rem; }
.info-row__icon { flex: none; width: 40px; height: 40px; border: 1px solid var(--gray-300); display: grid; place-items: center; }
.info-row__icon svg { width: 18px; height: 18px; }
.info-row strong { display: block; font-family: var(--font-serif); font-size: 1.15rem; font-weight: 600; }
.info-row a:hover { text-decoration: underline; }
.hours-table { width: 100%; border-collapse: collapse; font-size: .96rem; }
.hours-table td { padding: .45rem 0; border-bottom: 1px solid var(--line); }
.hours-table td:last-child { text-align: right; color: var(--muted); }

.form { display: grid; gap: 1.25rem; }
.form .full { grid-column: 1 / -1; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.field { display: flex; flex-direction: column; gap: .45rem; }
.field label { font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 600; color: var(--gray-700); }
.field label .req { color: var(--gray-500); }
.field input, .field select, .field textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: .85rem 1rem;
  border: 1px solid var(--gray-300);
  background: var(--white);
  color: var(--ink);
  border-radius: 0;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.field textarea { resize: vertical; min-height: 150px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(0,0,0,.08);
}
.field input:invalid:not(:placeholder-shown) { border-color: #b00020; }
.consent { display: flex; gap: .7rem; align-items: flex-start; font-size: .88rem; color: var(--muted); }
.consent input { width: 18px; height: 18px; margin-top: .2rem; flex: none; accent-color: var(--black); }
.form-note { font-size: .82rem; color: var(--gray-500); }

.form-alert {
  padding: 1rem 1.25rem;
  border: 1px solid;
  font-size: .95rem;
  display: none;
}
.form-alert.is-visible { display: block; }
.form-alert--success { border-color: #1f7a3d; background: #eef8f0; color: #1f5c30; }
.form-alert--error { border-color: #b00020; background: #fdeef0; color: #8a0019; }

.btn[disabled] { opacity: .55; cursor: not-allowed; }
.btn.is-loading { position: relative; color: transparent; }
.btn.is-loading::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 18px; height: 18px; border: 2px solid rgba(255,255,255,.4);
  border-top-color: var(--white); border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Carte / map */
.map-wrap { position: relative; }
.map-wrap iframe { width: 100%; height: 100%; min-height: 340px; border: 0; filter: grayscale(100%) contrast(1.05); }

/* CTA bande */
.cta-band { text-align: center; }
.cta-band h2 { color: var(--white); }
.cta-band p { color: var(--gray-400); max-width: 620px; margin: 0 auto 2rem; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--black); color: var(--gray-400); padding: clamp(3rem,6vw,4.5rem) 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; margin-bottom: 3rem; }
.footer-brand img { height: 54px; filter: brightness(0) invert(1); margin-bottom: 1.2rem; }
.footer-brand p { color: var(--gray-500); font-size: .95rem; max-width: 34ch; }
.footer-col h4 { color: var(--white); font-family: var(--font-sans); font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 1.2rem; }
.footer-col ul { list-style: none; display: grid; gap: .6rem; }
.footer-col a { color: var(--gray-400); font-size: .95rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-domains { color: var(--gray-500); font-size: .9rem; line-height: 2; }
.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  font-size: .82rem;
  color: var(--gray-600);
}
.footer-bottom a { color: var(--gray-500); }
.footer-bottom a:hover { color: var(--white); }

/* Bouton retour haut */
.to-top {
  position: fixed;
  right: 1.5rem; bottom: 1.5rem;
  width: 46px; height: 46px;
  background: var(--black);
  color: var(--white);
  border: 0;
  display: grid; place-items: center;
  opacity: 0; visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 90;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--gray-800); }

/* ---------- Reveal au scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-in { opacity: 1; transform: none; }

/* ==========================================================================
   Contenu légal (mentions / confidentialité)
   ========================================================================== */
.legal h2 { margin-top: 2.5rem; font-size: 1.7rem; }
.legal h3 { margin-top: 1.8rem; font-size: 1.3rem; }
.legal p, .legal li { color: var(--gray-700); }
.legal ul { padding-left: 1.2rem; margin-bottom: 1.2rem; }
.legal a { text-decoration: underline; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px) {
  .cards, .team { grid-template-columns: 1fr 1fr; }
  .profile, .profile--reverse { grid-template-columns: 1fr; }
  .profile--reverse .profile__media { order: 0; }
  .profile__media { max-width: 320px; }
}
@media (max-width: 860px) {
  :root { --header-h: 68px; }
  .main-nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(82vw, 340px);
    background: var(--white);
    padding: calc(var(--header-h) + 1.5rem) 2rem 2rem;
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 105;
  }
  body.nav-open .main-nav { transform: none; }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 1.4rem; }
  .nav-link { color: var(--gray-800) !important; font-size: .9rem; }
  .site-header--transparent .nav-link { color: var(--gray-800); }
  .nav-toggle { display: flex; }
  .site-header--transparent .nav-toggle span { background: var(--white); }
  body.nav-open .nav-toggle span { background: var(--black) !important; }
  .nav-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,.45);
    opacity: 0; visibility: hidden; transition: var(--transition); z-index: 104;
  }
  body.nav-open .nav-backdrop { opacity: 1; visibility: visible; }
  .split { grid-template-columns: 1fr; }
  .split--reverse .split__media { order: 0; }
  .contact-layout { grid-template-columns: 1fr; }
  .fees-grid, .news-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .cards, .team { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .fee-highlight { flex-direction: column; align-items: flex-start; text-align: left; }
  .hero__actions .btn { flex: 1 1 100%; justify-content: center; }
}

/* Accessibilité : réduction des animations */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}